Claim: Kong Le, who bloodlessly seized the Royal Lao Government in Vientiane and installed General Phoumi Nosavan in power, displaced Phoumi with a coup on 10 August 1960; then on April 18, 1964, Phoumi, just like how he displaced Kong Le, was displaced by Siho Lamphouthacoul with another coup.
Evidence: Captain (later Major General) Kong Le (Lao: ກອງແລ; 6 March 1934 – 17 January 2014) was a paratrooper in the Royal Lao Army. He led the premier unit of the Royal Lao Army, 2ème bataillon de parachutistes (Parachute Battalion 2), which campaigned relentlessly during 1959 and 1960. The idealistic young American-trained Lao Theung officer became known worldwide when on 10 August 1960 he and his mutinous paratroopers overthrew the Royal Lao Government in a coup d'état. Once ousted by the U.S.-backed 14 December 1960 countercoup by General Phoumi Nosavan, Kong Le and his paras retreated to the strategic Plain of Jars, gathering recruits to the neutralist cause along the way. 
Major General Phoumi Nosavan (27 January 1920 – 1985) was a military strongman who was prominent in the history of the Kingdom of Laos; at times, he dominated its political life to the point of being a virtual dictator. He would be temporarily removed from power during an August 1960 coup by Captain Kong Le, only to return with a Central Intelligence Agency backed counter-coup in December. As Phoumi's influence was whittled away, he attempted to retain power via coups, including one in 1964, and one in 1965. The 1964 coup being unsuccessful, he was stripped of his troop command. His final coup attempt in January 1965 was plotted with borrowed troops. On 25 December, General Phoumi took charge of the government in a bloodless coup, using Captain Kong Le and his Bataillon Parachutistes 2 (Parachute Battalion 2) to occupy Vientiane's infrastructure. On 16 December 1959, Phoui fired the CDNI ministers from his cabinet, including Phoumi. Phoumi believed he could impose an authoritarian "directed democracy" upon an ignorant populace for their own welfare. When the 1960 election results again favored leftists and communists, Phoumi founded the Paxa Sangkhom (People's Society) political party on 12 May 1960, as a means of furthering his political ends. On 10 August 1960, Kong Le would oust Phoumi in his own coup. 
Siho Lanphouthacoul (1934 – September 1966) was a Laotian paramilitary police officer. When his patron, General Phoumi Nosavan, seized power in December 1960, Siho's new battalions helped carry the day at the Battle of Vientiane. Captain Kong Le's coup later that year in August of that year seems not to have curtailed Siho's power; he raised two special counterinsurgency battalions within the Royal Lao Police (French: Police Royale Laotiénne - PRL), trained to military standards, Through Siho's influence, they were the first unit in the PRL and Royal Lao Armed Forces (French: Forces Armées du Royaume - FAR) to be completely armed with the U. S. automatic M-2 carbine. After Phoumi's coup succeeded, Siho consolidated the Royal Lao Army (RLA) military police and the PRL national police into his Directorate of National Coordination (DNC) Security Agency during March 1961. On 18 April 1964 there was a tripartite meeting on the Plain of Jars, as Souvanna Phouma met with his brother Souphanouvong to thrash out a coalition agreement. At this, Siho inveigled Kouprasith into a coup, on the grounds that the United States would have to accept their new government. By early April 1964, the DNC consisted of 6,500 men and served variously as a civil police force, immigration service, national police, and military intelligence service. On the night of 18/19 April 1964, BS 33 seized Vientiane's infrastructure. They arrested Souvanna Phouma and 15 leading officials of several opposed factions such as the Royal Lao Army, Forces Armées Neutralistes, and the French Embassy. Overall however, the DNC policemen were successful in their coup. General Phoumi Nosavan, when informed of the coup in progress, declined to participate. He confronted Siho and the mutinous Lao officers and informed them that the United States supported Souvanna Phouma; that was the end of the coup.